Patents/Inventors

David K. Fox

Minneapolis, MNUS2 patents

3 Patents

US121690562024
Railroad Crossing Gate Lamp System
RAILWAY EQUIPMENT COMPANY
0 cites
US121144042024
Warning Light Control System with Variable Flashing Rate
Railway Equipment Company, Inc.
0 cites
US120121372024
Railroad Crossing Gate Light Out Detector Apparatus and Method
Railway Equipment Company, Inc.
0 cites